MG MGA Twin Cam Workshop Manual page 141

Mga series
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K
THE
FRONT SUSPENSION
(4)
Replace
the
stub
axle
nut and "''&Sher and
tighten
the
nut to a torque wreuch
reading o
f
40
to
70
lb.
ft.
(S·
33
to
9-68
kg.
m.). Latitude
for the
torque wrench reading is given so that the nut
can
be tightened sufficiently to align a castellation with
the
stub
axle
split
pin hole.
Jn.
s ert
a
new split pin.
Section K.9
REMOVING
AND :REPLACING THE
FRONT COIL SPRING
Apply
the band brake and, using a suitable jaek placed
unde.
r
the
centre
of
the
front
cross-member, jack up
the
front
end of the car until
the wheels
are
dear of the
ground.
Remove
the front whed on the
sillc
alfc:cted.
Place
3n
additional
jack under
the
lower
spring
pan
and
jack up until the
hydraulic damper
levers are clear
of the rebound
rubber.
Ranove the lower
fulcrum bolL
Swing
up
the
hub
unit
:~nd
rest
it
on
a
s
uitable
block.
Release the
jack
from
under the spring
p3n,
press
down the lower
wishbone assembly, and remove
the
coil
spring.
Replacement
is carried out in the reverse manner
to
that
detailed
for
removal.
NOTE.-Take
care
that tbe
tbru:st
•asbers,
rubber
sub,
ud
rnaiMrs an assanblN
in
tbe
right order
(S«
Foe.
K.
t).
EQUIDISTANT
S
4
3S
Fig.
K.4
Th~
~orr~ct m~thod
of clamping
the
rubber
bushes of
tlrl!
lott~er
suspension
arm
K.8
.
_
i .
s2sl
l
DIA. ,
~
.
1-161
! ·002
DJA.
.
Fig. K.S
S137
The
dimensions of the lower
wishbone bllsl•es when
;,
new
rondition
Lubrica
te these parts and the
fulcrum
pins d uring and
after
assembly.
Smear each end
of
the
coil
spring
with grease and
ensure that the
upper end of
the
spring is correctly
located.
Section
K.
l
O
H
I l
iNG NEW
RUBBER BUSHES
Reroo'-c: the
coil springs
as
detailed
in Section
K.9.
Remove the four bolts holding the
spring
pan to the
levers.
Remove the cotters, nuts,
and
wasbers from the ends
or the inner
lower
fulcrum
pin
and
slide
off the levers
and
tlte
rubber
bushes.
Fit
the new rubber
bushes into
the levers.
These will
he found
to
he
quite
a loose
tit
in the lever,
but
when
clamped up by the nut and washer will expand into
their
housing. These
bushes
do
not
rotate
on their surfaces,
the
angular movement being taken by the rubber
ddlecting
torsionally
in
i~Kit.
Special care should
he
taken when
assembling these bushes
to
maintain a
ccotnl location so that the expansion of each half of
the
bush
is
equal.
To
attain
this
insert each bush
so
that it protrudes
cqu.ally each side of the housing
(see
Fig.
K.4).
and
then
clamp up
with the "asher and nut. When
central,
the
outer
flanges
of
the bushes should be
o
f
equal
proportions.
MOA
(Twill
Cam). Issue
3.
zn~

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